PubMed:32149769 / 2351-2352
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T374","span":{"begin":0,"end":1},"obj":"SYM"}],"text":"\u003c"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok526","span":{"begin":0,"end":1},"obj":"NN"}],"text":"\u003c"}